The final version of the Sarum Liturgy is under development, with insights from various clergy and encouragement from the Vicar, Archpriest Mark Rowe.
One major alteration concerns the use of leavened bread. Because unleavened bread does not crumble, it was placed directly on the corporal during the holiest part of the Mass, and this is the practice reflected in the standard late Sarum rubrics. This is probably 12th century in origin.
But we use unleavened bread in our Russian Orthodox Church's Western rite, and for this reason the rubrics were thoroughly revised so that the Lamb remains on the paten throughout the service.
The Sarum is a good usage for a priest who has a deacon, since there is very little for the deacon to do in the modern Western rites but he has a substantial role in the pre-Reformation Western rite.
